CN210246612U

CN210246612U - Improved Zeta AC-AC chopper voltage regulator

Info

Publication number: CN210246612U
Application number: CN201822279882.6U
Authority: CN
Inventors: Qiusheng Gong; 龚秋声
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-03
Filing date: 2019-11-03
Publication date: 2020-04-03
Anticipated expiration: 2029-11-03

Abstract

Improved Zeta AC-AC chopper voltage regulator is composed of load, 2 inductors, 2 capacitors, 2 two-way switches S1 and S2 and control circuit thereof, and has 3 ends: alternating current input end 2, alternating current output end 3, alternating current input output common terminal 1, S1 comprises 2 triodes and 2 diodes, S2 comprises 2 thyristors, 2 thyristor trigger poles have direct current voltage in the positive and negative half cycle of power, as long as adjust the on-off ratio of two-way switch S1 just adjustable output goes up and down alternating current voltage, it compares with current Zeta alternating current chopper voltage regulator: the method has the advantages of good reliability and cost ratio.

Description

Improved Zeta AC-AC chopper voltage regulator

[ a ] the technical field

The utility model relates to an ac up-down chopper voltage regulator.

[ II ] background Art

The direct current chopping voltage regulators in chapter 3 on the textbook of the power electronics branch technology are mainly six in number, the direct current chopping voltage regulators are named by foreigners or named by surnames of foreigners, the improved single-tube non-isolated direct current converter for Buck/Boost proposed by Slobodan Cuk of the California institute of technology in America has inductors in input and output sections, can obviously reduce the pulsation of input and output currents, is an improvement on a Buck/Boost circuit, is named as a Cuk circuit and is compiled on the textbook of the power electronics in the world, and the contribution of the California institute of technology in America and Americans to the power electronics science in the world is recorded. The topology circuit corresponding to six direct current chopping voltage regulators also comprises six alternating current chopping voltage regulators in alternating current chopping. The six topological circuits are all that the unidirectional switch and the diode device in the direct current chopping voltage regulator are changed into the full-control bidirectional switch, the control mode of the two full-control switches is complementary control to realize alternating current chopping voltage regulation, and the six topological circuits have the defects of poor reliability, high cost and the like.

[ third ] summary of the invention

The utility model aims at designing a better, the lower chopper circuit of cost of reliability than current Zeta friendship lift chopper voltage regulator.

In order to achieve the above purpose, the present invention provides an improved Zeta alternating current chopper voltage regulator, which is composed of a load RL, 2 inductors L1 and L2, 2 capacitors C1 and C2, 2 bidirectional switches S1 and S2 and a control circuit thereof, and has 3 terminals; alternating current input end 2, alternating current output end 3, alternating current input output common terminal 1, S1 comprises 2 triodes and 2 diodes, its characterized in that: 2 bidirectional switches S1 and S2 are non-complementarily controlled to regulate voltage, S2 is composed of 2 thyristors V3 and V4, the two thyristor trigger poles have dc voltages respectively in the positive and negative half cycles of the power supply, the up-down ac voltage can be regulated as long as the on-off ratio of the bidirectional switch S1 is regulated, the ac input 2 is connected with one end of the bidirectional switch S1, the other end 4 of the bidirectional switch S1 is connected with one end of an inductor L1 and one end of a capacitor C1, the other end 5 of the capacitor C1 is connected with one end of the bidirectional switch S2 and one end of an inductor L2, the ac output end 3 is connected with the other end of the inductor L2, one end of the capacitor C2 and one end of a load RL, and the ac input output end 1 is connected with the other end of the load RL, the other end of the bidirectional.

[ IV ] description of the drawings

Figure 1 is an improved Zeta AC up-down chopper voltage regulator of the design. Wherein: c1 and C2 are capacitances and L1 and L2 are inductances. S1 and S2 are bidirectional switches. D1 and D2 are diodes. V1 and V2 are triodes. V3 and V4 are thyristors.

Detailed description of the preferred embodiments

Fig. 1 is the utility model discloses an improved generation Zeta friendship lift chopper voltage regulator, its innovation point lies in: the bidirectional switch S2 is composed of 2 thyristors V3 and V4, and DC voltages are applied to the trigger electrodes of the thyristors V3 and V4 in the positive and negative half cycles of the power supply respectively. The reliability of the dry thyristor is far higher than that of the transistor, and the cost of the thyristor module is only one third of that of the transistor module, so that the reliability of the up-down chopper voltage regulating circuit is greatly improved, and the manufacturing cost of the circuit for products is greatly reduced. In addition, the control mode is also that the two bidirectional switches are not complementarily controlled, and the lifting alternating-current voltage of the alternating-current output can be adjusted by only adjusting the on-off ratio of S1.

The utility model provides an improved generation Zeta is handed over and is swashed the wave voltage regulator that falls, two-way switch S1 and S2 are non-complementary control, as long as adjust two-way switch S1 break-make ratio and just adjustable output lift exchanges the chopped wave voltage. The cost of the 2 thyristors V2 and V3 is far lower than that of the 2 triodes and 2 diodes, and the overload capability and reliability are strong. Therefore, the improved Zeta AC up-down voltage regulator has better performance than the prior Zeta AC up-down voltage regulator.

Claims

1. The improved Zeta AC-AC chopper voltage regulator consists of load RL, 2 inductors L1 and L2, 2 capacitors C1 and C2, 2 bidirectional switches S1 and S2 and its control circuit, and has 3 terminals: alternating current input end (2), alternating current output end (3), alternating current input output common terminal 1, S1 comprises 2 triodes and 2 diodes, its characterized in that: 2 bidirectional switches S1 and S2 are non-complementarily controlled to regulate voltage, S2 is composed of 2 thyristors V3 and V4, the two thyristor trigger poles have dc voltages respectively in the positive and negative half cycles of the power supply, the up-down ac voltage can be regulated and output only by regulating the on-off ratio of the bidirectional switch S1, the ac input end (2) is connected with one end of the bidirectional switch S1, the other end (4) of the bidirectional switch S1 is connected with one end of an inductor L1 and one end of a capacitor C1, the other end 5 of the capacitor C1 is connected with one end of the bidirectional switch S2 and one end of an inductor L2, the ac output end (3) is connected with the other end of the inductor L2, one end of the capacitor C2 and one end of the load RL, the other end of the bidirectional switch S2, the other end of the capacitor C2 and the other end of.

2. The improved Zeta-interleaved chopper voltage regulator of claim 1, wherein: the control modes of the 2 bidirectional switches S1 and S2 are non-complementary control.